Release: Creo Parametric 9.0.0.0

You can now use the new enhancements for improved productivity when defining tolerance stackups.

User Interface Location: Assembly Shift dialog box in the stackup definition table.

When EZ Tolerance Analysis detects a clearance between a shaft and a hole, it provides options for handling the positional variation between the two features. The default option is to allow the shaft to float within the hole, which is treated as an additional tolerance in the stackup results.

This enhancement introduces a new Center bias option for the Assembly shift. Using this new option, you can remove the impact on the tolerance stackup in applicable cases. For example, when the mating parts are produced with a thread, which was not necessarily modeled. In such case, the shift between the threaded parts does not impact the tolerance stack-up definition.

This enhancement provides you with a more flexible definition of the one-dimensional stackup analysis for the pin-hole press fit.

User Interface Location:

New Stackup type is available for checking a simple fit between two features of size. The Simple Fit Check is supported for shaft-hole, shaft-slot, or slab-slot clearance checks.

The new Simple Fit Check provides you with a quick way to review the clearance of two features of size without accounting for their assembly constraints. It is a quick tool for validating shaft-hole, shaft-slot, or slab-slot clearances.

User Interface Location: The new command is available in the New Stackup dialog box.

When defining a new tolerance stackup, use the active section feature in the model as the annotation plane of a tolerance stackup. You can use cross-section features as the annotation plane on which all the stackup annotations are shown. This eliminates the need to manually create a datum plane passing through the same cross-section plane.

This enhancement reduces the time spent on the manual creation of datum planes for the purpose of showing tolerance stackup details on a cross-section.